The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 24, 2025

Filed:

Aug. 03, 2022
Applicants:

Shibaura Machine Co., Ltd., Tokyo, JP;

National University Corporation Kanazawa University, Ishikawa, JP;

Inventors:

Yuya Sasai, Shizuoka, JP;

Yoshio Iizuka, Shizuoka, JP;

Kaho Osada, Shizuoka, JP;

Kentaro Taki, Ishikawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/90 (2006.01); B29B 7/42 (2006.01); B29C 70/06 (2006.01); B29K 105/12 (2006.01); B29K 309/08 (2006.01);
U.S. Cl.
CPC ...
B29B 7/90 (2013.01); B29B 7/42 (2013.01); B29C 70/06 (2013.01); B29K 2105/12 (2013.01); B29K 2309/08 (2013.01);
Abstract

This method for producing a fiber-reinforced composite material includes: a fiber dispersion process of providing a fiber-dispersed resin by kneading a resinwith fibersto disperse the fibersin the resin; and a molecular weight reduction process in which, while transporting the fiber-dispersed resin along an outer peripheral surface of a screw bodyprovided with a passageinside, the fiber-dispersed resin passes from an inletof the passageto an outletof the passageand a shear force is applied to the fiber-dispersed resin by restricting the transport of the fiber-dispersed resin with a barrier unitdisposed between the inletand the outletof the passageon the outer peripheral surface.


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